Cardiorespiratory profiling during simulated lunar mission using impedance pneumography

Publication date: May 2019Source: Biomedical Signal Processing and Control, Volume 51Author(s): Marcel Młyńczak, Agata Kołodziejczyk, Hubert Krysztofiak, Grzegorz Ambroszkiewicz, Marek Żyliński, Gerard CybulskiAbstractManned spaceflight requires research in diverse areas, including neuropsychology and human physiology. For these subjects, the Lunares Analog Research Station was established in Pila, Poland. It allows testing of crew members under space-like conditions. One experiment, Lunar Expedition I, was performed on a group of 6 analogue astronauts over 14 days. All were studied for their subjective perception of time and also asked to carry out mission-specific activities, like digging or repairing a rover during an extravehicular activity (EVA). The aims of the study were to measure cardiorespiratory signals using ECG and impedance pneumography devices under those conditions; to evaluate the quality of the data and the level of motion artefacts; and to assess the subjects’ status and adaptation. We used our own prototype, Pneumonitor 2, that enables registering respiratory-related impedance curve, a single-lead ECG and 3-axis accelerometer signals. Due to problems with a detachment of electrodes, we ultimately collected 10 full registrations from 5 astronauts. All signals were pre-processed and annotated. The set of cardiorespiratory parameters, including heart and respiratory activity indicators, was calculated for 3 main states: at rest, doing squats and perfor...
Source: Biomedical Signal Processing and Control - Category: Biomedical Science Source Type: research